Locomotive, Diesel Shunting 7301 | NSW Environment & Heritage

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Locomotive, Diesel Shunting 7301

Item details

Name of item: Locomotive, Diesel Shunting 7301
Type of item: Movable / Collection
Group/Collection: Transport - Rail
Category: Railway Locomotives & Rolling Stock
Primary address: Chullora Railway Workshops, Chullora, NSW 2190
Local govt. area: Bankstown
All addresses
Street AddressSuburb/townLGAParishCountyType
Chullora Railway WorkshopsChulloraBankstown  Primary Address
Xpt Depot, Meeks RoadSydenhamMarrickville  Alternate Address

Owner/s

Organisation NameOwner CategoryDate Ownership Updated
RailCorpState Government 
RailCorpState Government 

Statement of significance:

Locomotive 7301 has heritage significance as a good example of a local off-the-shelf diesel locomotive. Designed and built in Queensland, the locomotive is historically significant in revolutionising shunting operations in all major NSW goods yards. This locomotive is a good example of the only class to be built in large numbers with a hydraulic rather than the standard electric transmission. It is significant as an example of the final development of dedicated shunting locomotives and demonstrates the continuity of the line of development of shunting locomotives in New South Wales. Locomotive 7301 is a rare extant example of a once numerous class of diesel shunting locomotives, of which it is the first and leading example.
Date significance updated: 13 Nov 09
Note: The State Heritage Inventory provides information about heritage items listed by local and State government agencies. The State Heritage Inventory is continually being updated by local and State agencies as new information becomes available. Read the OEH copyright and disclaimer.

Description

Designer/Maker: Walkers Ltd, Maryborough, Queensland
Builder/Maker: Walkers Ltd, Maryborough, Queensland
Construction years: 1970-
Physical description: EXTERNAL
Locomotive 7301 is a Bo-Bo diesel-hydraulic of hooded design with a full-width cab, displaced longitudinally off-centre. The locomotive is built around a rigid plate frame with the locomotive body being inset from each side. Access to the main engine and other machinery is through hinged panels on either side. A full width cab is fitted which is displaced off-centre to No. 1 end. A transition coupling is fitted with buffers and a pilot at each end, which display a twin-beam headlamp and two illuminated road number boxes, marker lamps and a cluster of multi-chime air horns below the roofline of the cab. The locomotive remains in service with Countrylink painted overall in a special light blue and white livery.

MECHANICAL
It is powered by a single 8 cylinder, turbo-charged, 4 cycle, ā€˜Vā€™ā€™ formation, trunk piston, compression ignition oil engine, supplied by Caterpillar. The prime mover drives a Voith transmission, which provides power to the final drive units on axles via cardan shafts.
Physical condition and/or
Archaeological potential:
Operational Status: Non-Operational
General Condition: Moderate Condition
External Condition: Moderate Condition
Internal Condition: Good Condition

EXTERNAL CONDITION
Wheels are in good condition. There is some body rust, in particular where the short hood joins the cab. The tail shafts are disconnected between axles but not between transmission and final drives. This would need to be checked before the locomotive is moved. Number boxes are missing. Some brake shoes are not running correctly on wheels

INTERNAL CONDITION
The locomotive is in generally good condition internally. The engine requires a complete overhaul. It was withdrawn in late 2004 due to water leaking from the cooling system into the sump, possibly due to a blown gasket or cylinder liner seal.

HAZARDOUS MATERIALS
Possible asbestos in electrical gear, lead based paints.
Date condition updated:11 Nov 09
Modifications and dates: 1970 - built by Walkers Ltd. of Maryborough Queensland,
October 1970 - commenced service
Late 1980s - buffers removed
Repainted in Countrylink corporate colours.
Current use: NSW Government Railways Collection
Former use: Diesel Shunting Locomotive

History

Historical notes: Locomotive 7301 was built by Walkers Ltd. of Maryborough Queensland, to the order of the New South Wales Government Railways. As part of the initial order of 30 locomotives placed by the NSWGR in October 1969, 7301 was delivered and commenced service in October 1970. It represented the start of a major exercise to provide diesel-electric motive power for shunting yards and depots. A second and final contract for a further 20 locomotives was let in July 1971. The first 20 were allocated to the north coast and metropolitan areas where they displaced the steam locomotives still involved in shunting operations. This pattern was repeated around the state, though as train weights increased shunting of trainloads in some regional yards was beyond the limited power available from the small 73 class. The class tended to be increasingly concentrated in the Sydney region, where 7301 was allocated to Eveleigh. Towards the end of the 1980s the class numbers fell with withdrawals due to increasing age and unreliability. Locomotive 7301 was transferred most recently to Countrylink for shunting duties around the XPT Maintenance Centre at Meeks Road, where it has been repainted in their corporate colours with branding.

Historic themes

Australian theme (abbrev)New South Wales themeLocal theme
3. Economy-Developing local, regional and national economies Industry-Activities associated with the manufacture, production and distribution of goods Making railway journeys-
3. Economy-Developing local, regional and national economies Technology-Activities and processes associated with the knowledge or use of mechanical arts and applied sciences Shaping inland settlements-
3. Economy-Developing local, regional and national economies Transport-Activities associated with the moving of people and goods from one place to another, and systems for the provision of such movements Railway operations workers-

Assessment of significance

SHR Criteria a)
[Historical significance]
Locomotive 7301 has historical significance as it is an excellent example of a totally Australian designed diesel-hydraulic locomotive. It is historically significant as it represented the start of a major exercise to provide diesel-electric motive power for shunting yards and depots and is associated with the policy to replace steam in shunting yards as part of the modernisation of the NSWGR. It is significant as an example of the final development of the dedicated shunting locomotives.
SHR Criteria b)
[Associative significance]
Based on current knowledge, Locomotive 7301 is not known to have any special associations with people or events of significance in a local or state context. It does not have significance under this criterion.
SHR Criteria c)
[Aesthetic significance]
Locomotive 7301 has a moderate level of aesthetic significance. Locomotive 7301 is an example of design parameters being led by utilitarian demands.

Locomotive 7301 has technical significance. Locomotive 7301 represents the start of a major exercise to provide diesel-electric motive power for shunting yards and depots. The 73 class is significant as the class remains the only one to be built in large numbers with a hydraulic rather than the standard electric transmission.
SHR Criteria d)
[Social significance]
The Locomotive 7301 is likely to have a degree of social value for the community-based associations who have demonstrated an ongoing interest in its conservation and management. This item may also have a degree of social significance to a broader section of the community linked to its historic, aesthetic and associative values.
SHR Criteria e)
[Research potential]
Locomotive 7301 has a moderate level of research significance. It has the potential to reveal information regarding the replacement of steam power for shunting purposes, and also demonstrates the rare Australian designed hydraulic transmission technology.
SHR Criteria f)
[Rarity]
Locomotive 7301 has a high level of rarity significance. Locomotive 7301 is one of a small number of survivors of a once numerous class of diesel shunting locomotives of which it is the class leader. It is a rare example of a hydraulic transmission locomotive.
SHR Criteria g)
[Representativeness]
Locomotive 7301 is a good representative example of a class of locomotives built for shunting services.
Integrity/Intactness: Locomotive 7301 retains a moderate level of intactness and integrity. Its current livery impacts adversely upon its integrity.
Assessment criteria: Items are assessed against the PDF State Heritage Register (SHR) Criteria to determine the level of significance. Refer to the Listings below for the level of statutory protection.

Listings

Heritage ListingListing TitleListing NumberGazette DateGazette NumberGazette Page
Heritage Act - s.170 NSW State agency heritage register     

Study details

TitleYearNumberAuthorInspected byGuidelines used
SRA Heritage Rolling Stock Stage 2b Heritage Assessments2000 David Sheedy Pty Ltd Architects and Heritage ConsultantsSteven Adams Yes
S170 Rolling Stock Review2009 NSW Department of Commerce  Yes

References, internet links & images

TypeAuthorYearTitleInternet Links
WrittenGreen Air Services Pty Ltd2007SRA Rolling Stock Condition and Maintenance Assessment, Part 2
WrittenMorahan, M1998Diesel and Electric Locomotives of the NSWGR Volume 2
WrittenOberg,L1975Locomotives of Australia

Note: internet links may be to web pages, documents or images.

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(Click on thumbnail for full size image and image details)

Data source

The information for this entry comes from the following source:
Name: State Government
Database number: 4807251


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